There is a good workaround for the "eat vegetables" feature that so many desire. Introduce the french style "3 course meals".

Always start with the vegetable course, if the child is hungry, they will eat the vegetibles. Keep other courses out of sight, otherwise it leads to distraction. Then the next course is something filling. This tends to improve performance metrics and overall ability to function. Finally the third course is something they really enjoy eating(desert)